00001 // 00002 // ******************************************************************** 00003 // * License and Disclaimer * 00004 // * * 00005 // * The Geant4 software is copyright of the Copyright Holders of * 00006 // * the Geant4 Collaboration. It is provided under the terms and * 00007 // * conditions of the Geant4 Software License, included in the file * 00008 // * LICENSE and available at http://cern.ch/geant4/license . These * 00009 // * include a list of copyright holders. * 00010 // * * 00011 // * Neither the authors of this software system, nor their employing * 00012 // * institutes,nor the agencies providing financial support for this * 00013 // * work make any representation or warranty, express or implied, * 00014 // * regarding this software system or assume any liability for its * 00015 // * use. Please see the license in the file LICENSE and URL above * 00016 // * for the full disclaimer and the limitation of liability. * 00017 // * * 00018 // * This code implementation is the result of the scientific and * 00019 // * technical work of the GEANT4 collaboration. * 00020 // * By using, copying, modifying or distributing the software (or * 00021 // * any work based on the software) you agree to acknowledge its * 00022 // * use in resulting scientific publications, and indicate your * 00023 // * acceptance of all terms of the Geant4 Software license. * 00024 // ******************************************************************** 00025 // 00026 // neutron_hp -- source file 00027 // J.P. Wellisch, Nov-1996 00028 // A prototype of the low energy neutron transport model. 00029 // 00030 #include "G4NeutronHPLevel.hh" 00031 #include "G4NeutronHPGamma.hh" 00032 00033 G4NeutronHPLevel::~G4NeutronHPLevel() 00034 { 00035 if(theGammas != 0) 00036 { 00037 for(G4int i=0; i<nGammas; i++) delete theGammas[i]; 00038 } 00039 delete [] theGammas; 00040 } 00041 00042 void G4NeutronHPLevel::SetNumberOfGammas(G4int aGammas) 00043 { 00044 nGammas = aGammas; 00045 if(theGammas != 0) 00046 { 00047 for(G4int i=0; i<nGammas; i++) delete theGammas[i]; 00048 } 00049 delete [] theGammas; 00050 theGammas = new G4NeutronHPGamma * [nGammas]; 00051 } 00052 00053 void G4NeutronHPLevel::SetGamma(G4int i, G4NeutronHPGamma * aGamma) 00054 { 00055 theGammas[i] = aGamma; 00056 SetLevelEnergy(aGamma->GetLevelEnergy()); 00057 } 00058 00059 G4double G4NeutronHPLevel::GetGammaEnergy(G4int i) 00060 { 00061 return theGammas[i]->GetGammaEnergy(); 00062 } 00063 00064 G4DynamicParticleVector * G4NeutronHPLevel::GetDecayGammas() 00065 { 00066 G4DynamicParticleVector * theResult; 00067 G4double sum = 0; 00068 G4double * running = new G4double[nGammas]; 00069 running[0] = 0; 00070 G4int i; 00071 for(i=0; i<nGammas; i++) 00072 { 00073 if(i!=0) running[i]=running[i-1]; 00074 running[i]+=theGammas[i]->GetWeight(); 00075 } 00076 sum = running[nGammas-1]; 00077 G4int it(0); 00078 G4double random = G4UniformRand(); 00079 for(i=0; i<nGammas; i++) 00080 { 00081 it = i; 00082 if(random*sum < running[i]) break; 00083 } 00084 delete [] running; 00085 theResult = theGammas[it]->GetDecayGammas(); 00086 return theResult; 00087 }